A. S. Reshad, D. Panjiara, P. Tiwari, and V. V. Goud, "Two-step process for Production of Methyl Ester from Rubber Seed Oil using Barium Hydroxide Octahydrate Catalyst: Process Optimization" Journal of Cleaner Production, pp. 1-10, 2016.
 P. Tiwari and S. Garg, "Study of Reversible Kinetic Models for Alkali-Catalyzed Jatropha Curcas Transesterification" Biomass Conversion and Biorefinery, vol. 6, pp. 61-70, 2016.
 A. S. Reshad, P. Tiwari, and V. V. Goud, "Extraction of Oil from Rubber Seeds for Biodiesel Application: Optimization of Parameters" Fuel, vol. 150, pp. 636-644, 2015.
 A. S. Reshad, P. Barman, A. J. Chaudhari, P. Tiwari, V. Kulkarni, V. V. Goud, and N. Sahoo, "Rubber Seed Oil Methyl Ester Synthesis, Engine Performance, and Emission Characteristics of Blends" Energy & Fuels, vol. 29, pp. 5136-5144, 2015.
 P. Dhar, S. P. K. Vangala, P. Tiwari, A. Kumar, and V. Katiyar, "Thermal Degradation Kinetics of Poly (3-hydroxybutyrate)/Cellulose Nanocrystals based Nanobiocomposite" Journal of Thermodynamics and Catalysis, vol. 5, pp. 1-7, 2014.
 P. Tiwari, M. Deo, C. L. Lin, and J. D. Miller, "Characterization of Oil Shale Pore Structure Before and After Pyrolysis by Using X-ray Micro CT" Fuel, vol. 107, pp. 547-554, 2013.
 R. Kumar, P. Tiwari, and S. Garg, "Alkali Transesterification of Linseed Oil for Biodiesel Production" Fuel, vol. 104, pp. 553-560, 2013.
 P. Tiwari and M. Deo, "Detailed Kinetic Study of Oil Shale Pyrolysis TGA Data" AIChE J, vol. 58, pp. 505-515., 2012.
 P. Tiwari and M. Deo, "Compositional and Kinetic Analysis of Oil Shale Pyrolysis using TGA–MS" Fuel, vol. 94, pp. 333-341, 2012.
 K. Oh, P. Tiwari, and M. Deo, "Evaluation of Various Shale Processing Options" Oil Shale vol. 27, pp. 229-238, 2010.